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EMPLOYEE BENEFIT PLANS (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined contribution plan, age of eligibility (years) 21 years    
Defined contribution plan, required service period prior to plan participation (days) 0 years 0 months 60 days    
Defined contribution plan, employer matching contribution (percent) 50.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent    
Defined contribution plan, maximum annual contribution per employee (percent) 2.50%us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent    
Defined contribution plan, employer discretionary contribution amount $ 928us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount $ 933us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount $ 929us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Deferred compensation arrangement with individual, interest rate on notes payable (percent) 5.00%cbl_DeferredCompensationArrangementWithIndividualInterestRateOnNotesPayable    
Deferred compensation arrangement with individual, notes payable plus accrued interest $ 39cbl_DeferredCompensationArrangementwithIndividualNotesPayablePlusAccruedInterest $ 169cbl_DeferredCompensationArrangementwithIndividualNotesPayablePlusAccruedInterest  
Minimum [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Deferred compensation arrangement with individual, requisite service period (years) 5 years    
Maximum [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Deferred compensation arrangement with individual, requisite service period (years) 10 years